<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title></title>
</head>
<body>
<form action="updateProductytpeByid" method="post">
    <input th:value="${productType.id}" type="hidden" name="id"/>
    产品类别名称：<input type="text" name="producttypename" th:value="${productType.producttypename}"/>
    产品类别描述：<input type="text" name="producttypedescription" th:value="${productType.producttypedescription}"/>
    <input type="submit" th:value="提交"/>
</form>
</body>
</html>